local coordinate system

[Muhtesem-Ahmet-Kara]

What is the use of defining a local coordinate system? I define it by drawing a line, the structure changes, if it is horizontal, a different image appears vertically?

 

[Levent Özpak]

What is the use of defining a local coordinate system? The origin point and coordinate axes can be defined as any point and axis by the user with the "Define Local Coordinate System" command. For example, in a structure with the geometry in the picture below, the first part of the structure can be easily created with the Global coordinate system, while the local coordinate system for the second part Data entry can be made by activating it.

 

[Ismail Hakki Besler]

If you search for local coordinates in the program help, the following content is found. Enable Local Coordinate System Coordinate values written in the coordinate box are relative to the global origin unless otherwise stated. The user can work at any stage of the project according to local coordinates at any time. Working according to local coordinates means moving the origin point to the desired point in the drawing area and freezing the coordinate axes. Thanks to this operation, large and at the same time non-orthogonal coordinate values are not dealt with. In other words, the origin can be a desired point and the X and Y coordinates written in the coordinate box can be entered according to this point. The system of local coordinates can also be defined at any angle. In other words, the abscissa and ordinates of the local coordinates can be defined at any angle. For this definition, Define Local Coordinate System and Enable Local Coordinate System commands are used. Click the Tools/Approach/Define Local Coordinate System line or the Define Local Coordinate icon from the toolbar. The program waits for the apse of the local coordinate system to be defined. The apse is defined by clicking on two points. If the apse of the local coordinate system is to be defined at a certain angle, click the 1st point and enter the angle value in the A line in the coordinate box and press the Enter key on the keyboard. The 2nd point is clicked so that the apse of the local coordinate system is defined. The ordinate is perpendicular to the apse. When the process is finished, the local coordinate system automatically becomes active. If the Tools/Capture/Enable Local Coordinate System line or the Enable Local Coordinate System icon is clicked on the toolbar, the local coordinate is canceled and the global coordinates are returned. If the Enable Local Coordinate System command is clicked again at any stage, it uses the last defined local coordinate system.